Cúal is always used with a conjugation of ser after it. Cúal also is used to describe “which” but out of a large group. For example: out of all the phone numbers, which is yours? Que is used when asking for a definition like what does it mean or what does it.
http://www.rocketlanguages.com/spanish/resources/spanish_question_words.php
http://www.spanishclassonline.com/vocabulary/interrogatives.htm
http://www.drlemon.com/Grammar/interrogatives.html
The difference between Cúal and Que:
Cúal is always used with a conjugation of ser after it. Cúal also is used to describe “which” but out of a large group. For example: out of all the phone numbers, which is yours? Que is used when asking for a definition like what does it mean or what does it.
...............................and the rest:
http://www.spanishgrammargenius.com/que_cual_interrogative_pronouns_difference_Spanish.htm
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Interrogative words are question words!
By:Peri
1. ¿ A qué hora es la fiesta?
2. ¿ Adónde vas?
3.¿Cuándo es el desfile?
Quiz:
http://www.studyspanish.com/practice/quest.htm
http://www.123teachme.com/spanish_sentence_quiz/category/interrogative_1
Rags to Riches:
http://www.quia.com/rr/129905.html?AP_rand=718660991
Quizlet:
http://quizlet.com/22708502/spanish-interrogative-words-flash-cards/
Practice:
http://www.colby.edu/~bknelson/SLC/interrogatives.php
Aquí es una canción para ayudarle a recordar:
www.youtube.com/watch?v=CoXCoBE3VgU
Interrogative Words
By: James Kim
The Question(Interrogative) Words in Spanish are:
To memorize these words use this site:
http://quizlet.com/22708502/spanish-interrogative-words-flash-cards/
Examples:
¿ Quién es un chico muy alto?
¿ Con quién vas a la cine?
For practice problems use this site:
http://www.colby.edu/~bknelson/SLC/interrogatives1.php